A pneumatic hold down device for producing cartons

By introducing a pneumatic pressing device with a cylinder-driven piston rod and positioning components into the carton production process, the problem of cardboard sheet misalignment during folding and bonding has been solved, achieving stable pressing and positioning of the carton and improving production efficiency and quality.

CN224375007UActive Publication Date: 2026-06-19TIANJIN CHAOCHENG PAPER PACKAGING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN CHAOCHENG PAPER PACKAGING
Filing Date
2025-06-27
Publication Date
2026-06-19

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    Figure CN224375007U_ABST
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Abstract

This utility model discloses a pneumatic pressing device for producing cardboard boxes, specifically relating to the field of cardboard box manufacturing technology. It includes a supporting base plate, with a pressing assembly on top of the base plate. The pressing assembly includes a support frame, with an air pump, a cylinder, and a piston rod on top of the support frame. A pressing plate is located at the bottom of the piston rod, and a positioning assembly is located at the bottom of the support frame. The positioning assembly includes a mounting frame, with a drive motor at one end of the mounting frame, and a bidirectional lead screw, a sliding block, and a positioning plate inside the mounting frame. This utility model uses a cylinder to drive the piston rod and pressing plate to descend, causing the pressing plate to press the cardboard box against the inner wall of the bottom of the support frame. Simultaneously, the side of the pressing plate is slidably connected to a limiting groove via a limiting block, further improving the stability of the pressing plate and preventing it from shifting during use.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box production technology, and more specifically, to a pneumatic pressing device for producing cardboard boxes. Background Technology

[0002] In cardboard box manufacturing plants, during the production of packaging cartons, cardboard is die-cut and creasing to form sheets. Each sheet has an adhesive edge on one side. These two adhesive edges need to be glued together and overlapped. After the glue dries, the carton is folded to form a box. Due to the elastic recovery force of the cardboard sheet during the folding and gluing process, the overlapping adhesive edges can easily detach before the glue dries, causing the adhesive edges to separate and affecting the quality of the packaging box.

[0003] A utility model patent with publication number CN205467559U discloses a pneumatic pressing device for bundled cardboard boxes. This patent, through the setting of a frame, pressing table, pressing plate, cylinder, air pump, air pipe, pneumatic switch, and lifting pressure rod, can use pneumatic pressure to perform a pressing operation on the bonding of bundled cardboard box sheets. Its pressure is even and stable, and will not damage the surface of the cardboard box. It also has the characteristics of reasonable and scientific structure, high efficiency, high safety, practicality and ease of use.

[0004] However, the positioning effect of the cardboard box during the pressing process in this patent is not ideal, which causes the cardboard box to shift during the pressing process and affects the pressing effect. Therefore, it is necessary to provide a pneumatic pressing device for producing cardboard boxes to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pneumatic pressing device for producing cartons, which improves the stability of the cartons during the pressing process by setting positioning components and prevents the cartons from shifting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic pressing device for producing cartons, comprising a supporting base plate, wherein a pressing component is provided on the top of the supporting base plate;

[0007] The clamping assembly includes a support frame, with an air pump and a cylinder at the top of the support frame, a piston rod at the bottom of the cylinder, a clamping plate and a limiting block at the bottom of the piston rod, and a positioning assembly at the bottom of the support frame.

[0008] The positioning component includes a mounting frame, one end of which is equipped with a drive motor, and the interior of the mounting frame is equipped with a bidirectional lead screw and a sliding block. The top of the sliding block is equipped with a positioning plate, and the bottom of the positioning plate is equipped with a connecting block and a limiting rod.

[0009] Furthermore, the bottom of the support frame is connected to the support base plate by bolts, and an air pump is installed in the middle of the top of the support frame by bolts. A cylinder is installed on one side of the top of the support frame by bolts, and the cylinder is connected to the air pump through an air pipe. There are four cylinders, which are symmetrically distributed on both sides of the top of the support frame.

[0010] Furthermore, a piston rod is installed at the bottom of the cylinder, and the piston rod is correspondingly arranged with the cylinder. A pressure plate is installed at the bottom of the piston rod by bolts, and the side of the pressure plate is slidably connected to the inner wall of the support frame. Limiting blocks are fixedly connected to the side of the pressure plate, and there are four limiting blocks, which are symmetrically distributed on both sides of the pressure plate. Limiting grooves are opened on the inner wall of the support frame, and the limiting blocks are slidably connected inside the limiting grooves.

[0011] Furthermore, the mounting frame is bolted to the bottom center of the support frame, and the mounting frame is longitudinally positioned in the center of the mounting frame. A mounting groove is provided in the center of the mounting frame, and a drive motor is bolted to the outer wall of one end of the mounting frame. The output end of the drive motor is connected to a bidirectional lead screw, and the two ends of the bidirectional lead screw are respectively mounted on the inner walls of the two ends of the mounting groove through bearings.

[0012] Furthermore, a sliding block is sleeved on the outer wall of the bidirectional lead screw, and the sliding block is connected to the bidirectional lead screw by a thread. There are two sliding blocks, which are symmetrically distributed at both ends of the bidirectional lead screw, and the sliding blocks are slidably connected inside the mounting groove. The outer wall of the sliding block is in contact with the inner wall of the mounting groove. A positioning plate is installed on the top of the sliding block by bolts, and the two ends of the positioning plate are connected to the inner walls of both sides of the support frame.

[0013] Furthermore, the bottom of the positioning plate is fixedly connected to a connecting block, and there are two connecting blocks, which are respectively distributed on both sides of the bottom of the positioning plate. A limiting rod is inserted in the middle of the connecting block, and the limiting rod connects the two sets of connecting blocks at the bottom of the positioning plate. The limiting rod passes through the supporting base plate. A limiting groove is opened on the inner wall of the bottom of the bearing frame, and there are two limiting grooves, which are symmetrically distributed on the inner wall of the bottom of the bearing frame.

[0014] Furthermore, the two limiting grooves are symmetrically distributed on both sides of the mounting frame, and the limiting rod is correspondingly set with the limiting groove. The inner wall of the limiting groove is bolted with mounting blocks, and there are two mounting blocks, which are symmetrically distributed on the inner walls of both ends of the limiting groove. The mounting blocks are set at a certain distance from the opening of the limiting groove, and the mounting blocks are sleeved on the outside of the limiting rod. The end of the limiting rod away from the support frame is bolted with a limiting side plate, and the limiting side plate is located on the side of the positioning plate away from the support frame.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model uses a set of cylinders to drive the piston rod and the pressing plate to descend, so that the pressing plate can press the carton on the inner wall of the bottom of the support frame. The four sets of cylinders and piston rods are symmetrically distributed on the top two sides of the support frame to improve the pressing stability. At the same time, the side of the pressing plate is slidably connected to the inside of the limiting groove through the limiting block, which further improves the stability of the pressing plate and prevents the pressing plate from shifting during use, thus affecting the pressing effect.

[0017] 2. This utility model uses a positioning component to position the cartons on the inner wall of the bottom of the support frame. A drive motor drives a bidirectional lead screw to rotate, and two sets of sliding blocks synchronously move two positioning plates in opposite directions. During the movement, the cartons are aligned and positioned to prevent misalignment between the two cartons. Manual adjustment by the operator is still required, further improving the ease of use of the device. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a first-view structural schematic diagram of the device of this utility model.

[0021] Figure 2 This is a second-view structural schematic diagram of the device of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the clamping assembly of this utility model.

[0023] Figure 4 This is a schematic diagram of the positioning component of this utility model.

[0024] The attached figures are labeled as follows: 1. Support base plate; 2. Clamping assembly; 3. Bearing frame; 4. Air pump; 5. Cylinder; 6. Piston rod; 7. Clamping plate; 8. Limiting block; 9. Limiting groove; 10. Positioning assembly; 11. Mounting frame; 12. Drive motor; 13. Mounting slide; 14. Two-way lead screw; 15. Sliding block; 16. Positioning plate; 17. Connecting block; 18. Limiting rod; 19. Limiting slide; 20. Limiting side plate; 21. Mounting block. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This utility model provides a pneumatic pressing device for producing cartons, including a supporting base plate 1, and a pressing component 2 is provided on the top of the supporting base plate 1;

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the specific implementation method is as follows: the clamping assembly 2 includes a support frame 3. An air pump 4 and a cylinder 5 are mounted on the top of the support frame 3, and a piston rod 6 is mounted on the bottom of the cylinder 5. A clamping plate 7 and a limiting block 8 are mounted on the bottom of the piston rod 6. A positioning assembly 10 is mounted on the bottom of the support frame 3. The bottom of the support frame 3 is connected to the supporting base plate 1 by bolts. An air pump 4 is bolted to the middle of the top of the support frame 3. A cylinder 5 is bolted to one side of the top of the support frame 3, and the cylinder 5 is connected to the air pump 4 via an air pipe. There are four cylinders 5, symmetrically distributed on both sides of the top of the support frame 3. A piston rod 6 is mounted on the bottom of each cylinder 5, and the piston rod 6 corresponds to the cylinder 5. A clamping plate 7 is bolted to the bottom of the piston rod 6. The side of the pressing plate 7 is slidably connected to the inner wall of the support frame 3. The side of the pressing plate 7 is fixedly connected to the limiting block 8, and there are four limiting blocks 8, which are symmetrically distributed on both sides of the pressing plate 7. The inner wall of the support frame 3 is provided with a limiting groove 9, and the limiting block 8 is slidably connected to the inside of the limiting groove 9. The piston rod 6 is driven by the cylinder 5 to descend with the pressing plate 7, so that the pressing plate 7 can press the carton on the bottom inner wall of the support frame 3. The four sets of cylinders 5 and piston rods 6 are symmetrically distributed on the top two sides of the support frame 3 to improve the pressing stability. At the same time, the side of the pressing plate 7 is slidably connected to the inside of the limiting groove 9 through the limiting block 8, which further improves the stability of the pressing plate 7 and prevents the pressing plate 7 from shifting during use and affecting the pressing effect.

[0028] In use, the cardboard box to be compressed is placed on the bottom inner wall of the support frame 3. The air pump 4 and the air cylinder 5 are connected by the air cylinder. The air cylinder 5 drives the piston rod 6, causing the piston rod 6 to lower the pressing plate 7, thereby pressing the cardboard box. At the same time, the side of the pressing plate 7 is fixedly connected to the limiting block 8, which is slidably connected to the limiting groove 9 on the inner wall of the support frame 3. When the pressing plate 7 moves, the limiting block 8 slides inside the limiting groove 9, thereby limiting the connection of the pressing plate 7, improving the stability of the pressing plate 7 and preventing the pressing plate 7 from shifting during use.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the specific implementation method is as follows: the positioning component 10 includes a mounting frame 11, a drive motor 12 is provided at one end of the mounting frame 11, and a bidirectional lead screw 14 and a sliding block 15 are provided inside the mounting frame 11. A positioning plate 16 is provided on the top of the sliding block 15, and a connecting block 17 and a limiting rod 18 are provided at the bottom of the positioning plate 16. The mounting frame 11 is bolted to the bottom middle of the support frame 3, and the mounting frame 11 is arranged longitudinally in the middle of the mounting frame 11. A mounting groove 13 is opened in the middle of the mounting frame 11, and the drive motor 12 is bolted to the outer wall of one end of the mounting frame 11. The output end of 12 is connected to a bidirectional lead screw 14, and the two ends of the bidirectional lead screw 14 are respectively mounted on the inner walls of the two ends of the mounting groove 13 through bearings. A sliding block 15 is sleeved on the outer wall of the bidirectional lead screw 14, and the sliding block 15 is connected to the bidirectional lead screw 14 by threads. There are two sliding blocks 15, which are symmetrically distributed at the two ends of the bidirectional lead screw 14. The sliding blocks 15 are slidably connected inside the mounting groove 13. The outer wall of the sliding block 15 is in contact with the inner wall of the mounting groove 13. A positioning plate 16 is bolted to the top of the sliding block 15, and the two ends of the positioning plate 16 are connected to the inner walls of both sides of the support frame 3.

[0030] Once the carton is positioned on the bottom inner wall of the support frame 3, the drive motor 12 drives the bidirectional lead screw 14 to rotate, causing the two sliding blocks 15 at both ends of the bidirectional lead screw 14 to synchronously drive the two positioning plates 16 to move in opposite directions. The positioning plates 16 align and position the carton in the middle of the support frame 3, preventing the carton from shifting or misaligning between the two cartons, which would affect the pressing effect and improve the work efficiency of the staff. The sliding block 15 is slidably connected inside the mounting groove 13, thereby limiting the sliding block 15 and preventing it from rotating during use, which would affect the stability of the device. The sliding block 15 is sleeved on the outside of the bidirectional lead screw 14, and the sliding block 15 and the bidirectional lead screw 14 are connected by threads.

[0031] A connecting block 17 is fixedly connected to the bottom of the positioning plate 16. There are two connecting blocks 17, which are distributed on both sides of the bottom of the positioning plate 16. A limiting rod 18 is inserted into the middle of the connecting block 17, and the limiting rod 18 connects the two sets of connecting blocks 17 at the bottom of the positioning plate 16. The limiting rod 18 passes through the supporting base plate 1. A limiting groove 19 is opened on the inner wall of the bottom of the bearing frame 3. There are two limiting grooves 19, which are symmetrically distributed on the inner wall of the bottom of the bearing frame 3. The two limiting grooves 19 are symmetrically distributed on both sides of the mounting frame 11, and the limiting rod 18 is correspondingly set with the limiting groove 19. An mounting block 21 is installed on the inner wall of the limiting groove 19 by bolts. There are two mounting blocks 21, which are symmetrically distributed at both ends of the limiting groove 19. On the wall, the mounting block 21 is set at a certain distance from the opening of the limiting slide groove 19, and the mounting block 21 is sleeved on the outside of the limiting rod 18. The end of the limiting rod 18 away from the support frame 3 is bolted with a limiting side plate 20, and the limiting side plate 20 is located on the side of the positioning plate 16 away from the support frame 3. The positioning component 10 is used to position the carton on the bottom inner wall of the support frame 3. The drive motor 12 drives the bidirectional lead screw 14 to rotate, and the two sets of sliding blocks 15 synchronously drive the two positioning plates 16 to move in opposite directions. During the movement, the carton is aligned and positioned to prevent misalignment between the two cartons. Manual adjustment by the staff is still required, which further improves the ease of use of the device.

[0032] The bottom of the positioning plate 16 is fixedly connected to the connecting block 17. When the positioning plate 16 moves, the connecting block 17 slides along the limiting rod 18. At the same time, the connecting block 17 is correspondingly set with the limiting slide groove 19. The positioning plate 16 drives the connecting block 17 to slide into the interior of the limiting slide groove 19, thereby realizing the positioning connection of the two ends of the positioning plate 16, further improving the stability of the positioning plate 16. The limiting slide groove 19 is equipped with an installation block 21 in the middle, thereby supporting the limiting rod 18, improving the stability of the limiting rod 18, and limiting the connecting block 17 to prevent the sliding block 15 from sliding to the middle of the bidirectional lead screw 14, which would affect the use.

[0033] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A pneumatic pressing device for producing cardboard boxes, comprising a supporting base plate (1), characterized in that: A clamping assembly (2) is provided on the top of the supporting base plate (1); The clamping assembly (2) includes a support frame (3), the top of which is provided with an air pump (4) and a cylinder (5), and the bottom of the cylinder (5) is provided with a piston rod (6), the bottom of which is provided with a clamping plate (7) and a limiting block (8), and the bottom of the support frame (3) is provided with a positioning assembly (10). The positioning component (10) includes a mounting frame (11), one end of which is provided with a drive motor (12), and the interior of the mounting frame (11) is provided with a two-way lead screw (14) and a sliding block (15). The top of the sliding block (15) is provided with a positioning plate (16), and the bottom of the positioning plate (16) is provided with a connecting block (17) and a limiting rod (18).

2. The pneumatic pressing device for producing cardboard boxes according to claim 1, characterized in that: The bottom of the support frame (3) is connected to the support base plate (1) by bolts, and an air pump (4) is installed in the middle of the top of the support frame (3) by bolts. A cylinder (5) is installed on one side of the top of the support frame (3) by bolts, and the cylinder (5) is connected to the air pump (4) by an air pipe. There are four cylinders (5), which are symmetrically distributed on both sides of the top of the support frame (3).

3. The pneumatic pressing device for producing cardboard boxes according to claim 2, characterized in that: A piston rod (6) is installed at the bottom of the cylinder (5), and the piston rod (6) is correspondingly arranged with the cylinder (5). A pressure plate (7) is installed at the bottom of the piston rod (6) by bolts, and the side of the pressure plate (7) is slidably connected to the inner wall of the support frame (3). A limit block (8) is fixedly connected to the side of the pressure plate (7), and there are four limit blocks (8), which are symmetrically distributed on both sides of the pressure plate (7). A limit groove (9) is opened on the inner wall of the support frame (3), and the limit block (8) is slidably connected inside the limit groove (9).

4. The pneumatic pressing device for producing cardboard boxes according to claim 1, characterized in that: The mounting frame (11) is bolted to the bottom center of the support frame (3), and the mounting frame (11) is longitudinally arranged in the middle of the mounting frame (11). The mounting frame (11) has a mounting groove (13) in the middle, and a drive motor (12) is bolted to the outer wall of one end of the mounting frame (11). The output end of the drive motor (12) is connected to a two-way lead screw (14), and the two ends of the two-way lead screw (14) are respectively mounted on the inner walls of the two ends of the mounting groove (13) through bearings.

5. A pneumatic pressing device for producing cardboard boxes according to claim 4, characterized in that: A sliding block (15) is sleeved on the outer wall of the bidirectional lead screw (14), and the sliding block (15) is connected to the bidirectional lead screw (14) by a thread. There are two sliding blocks (15), which are symmetrically distributed at both ends of the bidirectional lead screw (14). The sliding block (15) is slidably connected inside the mounting groove (13). The outer wall of the sliding block (15) is in contact with the inner wall of the mounting groove (13). A positioning plate (16) is bolted to the top of the sliding block (15), and both ends of the positioning plate (16) are connected to the inner walls of both sides of the support frame (3).

6. A pneumatic pressing device for producing cardboard boxes according to claim 5, characterized in that: The bottom of the positioning plate (16) is fixedly connected to a connecting block (17), and there are two connecting blocks (17), which are respectively distributed on both sides of the bottom of the positioning plate (16). A limiting rod (18) is inserted in the middle of the connecting block (17), and the limiting rod (18) connects the connecting blocks (17) at the bottom of the two sets of positioning plates (16). The limiting rod (18) passes through the support base plate (1). A limiting groove (19) is opened on the bottom inner wall of the support frame (3), and there are two limiting grooves (19), which are symmetrically distributed on the bottom inner wall of the support frame (3).

7. A pneumatic pressing device for producing cardboard boxes according to claim 6, characterized in that: Two limiting grooves (19) are symmetrically distributed on both sides of the mounting frame (11), and the limiting rod (18) is correspondingly set with the limiting groove (19). The inner wall of the limiting groove (19) is bolted with mounting blocks (21), and there are two mounting blocks (21), which are symmetrically distributed on the inner walls of the two ends of the limiting groove (19). The mounting blocks (21) are set at a certain distance from the opening of the limiting groove (19), and the mounting blocks (21) are sleeved on the outside of the limiting rod (18). The end of the limiting rod (18) away from the bearing frame (3) is bolted with a limiting side plate (20), and the limiting side plate (20) is located on the side of the positioning plate (16) away from the bearing frame (3).